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Verified answer
GELOMBANG CAHAYA• interferensi
d = 0,2 mm = 2×10^-4 m
m = 4
y = 10 mm = 10^-2 m
L = 1 m
λ = __?
y d / L = m λ
λ = y d / (m L)
λ = 10^-2 • 2×10^-4 / (4 • 1)
λ = 5×10^-7 m = 5000 A ← jwb